I did a blog post on basic matrix ops which may be useful to you http://blog.keithsheppard.name/2009/06/bird-tracks-through-math-land-basic.html
It uses a 2D list representation for matrices which you would not do for any performance critical work. best keith On Wed, Feb 3, 2010 at 1:38 AM, 조광래 <kwangrae...@gmail.com> wrote: > hi i was trying to solve it but > > All i got is > type Matrix=[[Double]] > > multMM :: Matrix -> Matrix -> Matrix --multiplies two matrices > multMM m t = [[sum (zipWith (*) (head m)(a)) ] ]where a = [head a | a<- > t] > > > Main> multMM [[2,1,-6],[1,-3,2]] [[1,0,-3],[0,4,20],[-2,1,1]] > [[14.0]] > > from this i could get only the first multiplication 14 that is by 2*1 + > 1*0 + -6*-2 = 14 > > how can i make this go throw all rows and colums to get multiple of matrixs? > > Thank you~ > > > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > > -- keithsheppard.name _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
